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Literature DB >> 16094996

Plasmid ColE1 DNA replication in Escherichia coli strains temperature-sensitive for DNA replication.

Abstract

Mutants of the dnaA, dnaC, dnaD, polC, dnaF and dnaG gene loci were tested for their capacity for colicinogenic plasmid E1 (ColE1) replication at a non-permissive temperature. It was found that ColE1 replication was independent of the dnaA gene function and dependent on dnaC, D, F and G. ColE1 replication in the polC mutant E486 continued for several hours but at a greatly reduced rate. No effect was found of the dnaG mutation on thymine-deprivation-induced "priming" of ColE1 replication at the non-permissive temperature. The mutants also were tested for aberrant replication intermediates of plasmid DNA as well as a temperature sensitive supercoiled DNA-protein relaxation complex. RNA-containing supercoils were found to accumulate in a poIC mutant also blocked for protein synthesis.

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Year: 1975 PMID： 16094996 DOI： 10.1007/bf00341713

Source DB: PubMed Journal: Mol Gen Genet ISSN： 0026-8925

30 in total

1. The influence of DNA A and DNA C mutations on the initiation of plasmid DNA replication.

Authors: W Goebel
Journal: Biochem Biophys Res Commun Date: 1973-04-16 Impact factor: 3.575

2. Sensitivity of Escherichia coli to viral nucleic acid. VI. Capacity of dna mutants and DNA polymerase-less mutants for multiplication of phiA and phiX 174.

Authors: A Taketo
Journal: Mol Gen Genet Date: 1973-03-27

3. Replication of the DNA of the colicinogenic factor E 1 (Col E 1 ) at the restrictive temperature in a DNA replication mutant thermosensitive for DNA polymerase. 3.

Authors: W Goebel
Journal: Nat New Biol Date: 1972-05-17

4. Unidirectional replication of plasmid ColE1 DNA.

Authors: M A Lovett; L Katz; D R Helinski
Journal: Nature Date: 1974-09-27 Impact factor: 49.962

5. Nature of Col E 1 plasmid replication in Escherichia coli in the presence of the chloramphenicol.

Authors: D B Clewell
Journal: J Bacteriol Date: 1972-05 Impact factor: 3.490

6. Direct inhibition of Col E 1 plasmid DNA replication in Escherichia coli by rifampicin.

Authors: D B Clewell; B Evenchik; J W Cranston
Journal: Nat New Biol Date: 1972-05-03

7. Studies on extrachromosomal DNA elements. Replication of the colicinogenic factor Col E1 in two temperature sensitive mutants of Escherichia coli defective in DNA replication.

Authors: W Goebel
Journal: Eur J Biochem Date: 1970-08

8. Thermosensitive mutants of E. coli affected in the processes of DNA synthesis and cellular division.

Authors: Y Hirota; A Ryter; F Jacob
Journal: Cold Spring Harb Symp Quant Biol Date: 1968

9. Supercoiled circular DNA-protein complex in Escherichia coli: purification and induced conversion to an opern circular DNA form.

Authors: D B Clewell; D R Helinski
Journal: Proc Natl Acad Sci U S A Date: 1969-04 Impact factor: 11.205

10. Temperature-sensitive mutants for the replication of plasmids in Escherichia coli: requirement for deoxyribonucleic acid polymerase I in the replication of the plasmid ColE 1 .

Authors: D T Kingsbury; D R Helinski
Journal: J Bacteriol Date: 1973-06 Impact factor: 3.490

31 in total

Review 1. Colicinogeny and related phenomena.

Authors: K G Hardy
Journal: Bacteriol Rev Date: 1975-12

5. NOVEL Escherichia coli dnaB mutant: direct involvement of the dnaB252 gene product in the synthesis of an origin-ribonucleic acid species during initiaion of a round of deoxyribonucleic acid replication.

Authors: J W Zyskind; D W Smith
Journal: J Bacteriol Date: 1977-03 Impact factor: 3.490

6. Plasmid replication functions. II. Cloning analysis of the repA replication region of antibiotic resistance plasmid R6-5.

Authors: I Andrés; P M Slocombe; F Cabello; J K Timmis; R Lurz; H J Burkardt; K N Timmis
Journal: Mol Gen Genet Date: 1979-01-05

Plasmid ColE1 DNA replication in Escherichia coli strains temperature-sensitive for DNA replication.

1. The influence of DNA A and DNA C mutations on the initiation of plasmid DNA replication.

2. Sensitivity of Escherichia coli to viral nucleic acid. VI. Capacity of dna mutants and DNA polymerase-less mutants for multiplication of phiA and phiX 174.

3. Replication of the DNA of the colicinogenic factor E 1 (Col E 1 ) at the restrictive temperature in a DNA replication mutant thermosensitive for DNA polymerase. 3.

4. Unidirectional replication of plasmid ColE1 DNA.

5. Nature of Col E 1 plasmid replication in Escherichia coli in the presence of the chloramphenicol.

6. Direct inhibition of Col E 1 plasmid DNA replication in Escherichia coli by rifampicin.

7. Studies on extrachromosomal DNA elements. Replication of the colicinogenic factor Col E1 in two temperature sensitive mutants of Escherichia coli defective in DNA replication.

8. Thermosensitive mutants of E. coli affected in the processes of DNA synthesis and cellular division.

9. Supercoiled circular DNA-protein complex in Escherichia coli: purification and induced conversion to an opern circular DNA form.

10. Temperature-sensitive mutants for the replication of plasmids in Escherichia coli: requirement for deoxyribonucleic acid polymerase I in the replication of the plasmid ColE 1 .

Review 1. Colicinogeny and related phenomena.

2. A sequence that affects the copy number and stability of pSW200 and ColE1.

3. Mechanisms of transcription-replication collisions in bacteria.

4. Function of DNA polymerase I in RNA-primed synthesis of bacteriophage M-13 duplex DNA.

5. NOVEL Escherichia coli dnaB mutant: direct involvement of the dnaB252 gene product in the synthesis of an origin-ribonucleic acid species during initiaion of a round of deoxyribonucleic acid replication.

6. Plasmid replication functions. II. Cloning analysis of the repA replication region of antibiotic resistance plasmid R6-5.

7. Effect of dna mutations on the replication of plasmid pSC101 in Escherichia coli K-12.

8. REPLICAtion of small plasmids in extracts of Escherichia coli: requirement for both DNA polymerases I and II.

9. The dnaC protein of Escherichia coli. Purification, physical properties and interaction with dnaB protein.

10. Replication of plasmid DNA in Proteus mirabilis in limiting concentrations of thymine.